pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24940-CambridgeHp_A3_16.ps) >>/Users/jc/w/tmp/Tune-24940-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/CambridgeHp_A3_16.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-24940-CambridgeHp_A3_16.abc 553 ABC music file with the extracted tune(s)
Tune-24940-CambridgeHp_A3_16.ps 36376 PostScript
Tune-24940-CambridgeHp_A3_16.txt 553 Plain-text file with the extracted tune(s)
Tune-24940-get.log 4611 Log file, useful mostly for debugging
These files should be available for 24 hours.